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18 April 2024

» arxiv » 2008.02127

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Constraining the contribution of Gamma-Ray Bursts to the high-energy diffuse neutrino flux with 10 years of ANTARES data
ANTARES Collaboration ; A. Albert ; M. André ; M. Anghinolfi ; G. Anton ; M. Ardid ; J.-J. Aubert ; J. Aublin ; B. Baret ; S. Basa ; B. Belhorma ; V. Bertin ; S. Biagi ; M. Bissinger ; J. Boumaaza ; M. Bouta ; M.C. Bouwhuis ; H. Brânzaş ; R. Bruijn ; J. Brunner ; J. Busto ; A. Capone ; L. Caramete ; J. Carr ; S. Celli ; M. Chabab ; T. N. Chau ; R. Cherkaoui El Moursli ; T. Chiarusi ; M. Circella ; A. Coleiro ; M. Colomer-Molla ; R. Coniglione ; P. Coyle ; A. Creusot ; A. F. Díaz ; G. de Wasseige ; A. Deschamps ; C. Distefano ; I. Di Palma ; A. Domi ; C. Donzaud ; D. Dornic ; D. Drouhin ; T. Eber ; N. El Khayati ; A. Enzenhöfer ; A. Ettahiri ; P. Fermani ; G. Ferrara ; F. Filippini ; L. Fusco ; P. Gay ; H. Glotin ; R. Gozzini ; K. Graf ; C. Guidi ; S. Hallmann ; H. van Haren ; A.J. Heijboer ; Y. Hello ; J.J. Hernández-Rey ; J. Hößl ; J. Hofestädt ; F. Huang ; G. Illuminati ; C. W. James ; M. de Jong ; P. de Jong ; M. Jongen ; M. Kadler ; O. Kalekin ; U. Katz ; N.R. Khan-Chowdhury ; A. Kouchner ; I. Kreykenbohm ; V. Kulikovskiy ; R. Lahmann ; R. Le Breton ; D. Lefèvre ; E. Leonora ; G. Levi ; M. Lincetto ; D. Lopez-Coto ; S. Loucatos ; G. Maggi ; J. Manczak ; M. Marcelin ; A. Margiotta ; A. Marinelli ; J.A. Martínez-Mora ; S. Mazzou ; K. Melis ; P. Migliozzi ; M. Moser ; A. Moussa ; R. Muller ; L. Nauta ; S. Navas ; E. Nezri ; A. Nuñez-Castiñeyra ; B. O'Fearraigh ; M. Organokov ; G.E. Păvălaş ; C. Pellegrino ; M. Perrin-Terrin ; P. Piattelli ; C. Poirè ; V. Popa ; T. Pradier ; N. Randazzo ; S. Reck ; G. Riccobene ; A. Romanov ; A. Sánchez-Losa ; D. F. E. Samtleben ; M. Sanguineti ; P. Sapienza ; J. Schnabe ; F. Schüssler ; M. Spurio ; Th. Stolarczyk ; B. Strandberg ; M. Taiuti ; Y. Tayalati ; T. Thakore ; S.J. Tingay ; B. Vallage ; V. Van Elewyck ; F. Versari ; S. Viola ; D. Vivolo ; J. Wilms ; A. Zegarelli ; J.D. Zornoza ; J. Zúñiga ;
Date:	5 Aug 2020
Abstract:	Addressing the origin of the astrophysical neutrino flux observed by IceCube is of paramount importance. Gamma-Ray Bursts (GRBs) are among the few astrophysical sources capable of achieving the required energy to contribute to such neutrino flux through p$gamma$ interactions. In this work, ANTARES data have been used to search for upgoing muon neutrinos in spatial and temporal coincidence with 784 GRBs from 2007 to 2017. The expected neutrino fluxes have been calculated for each GRB, in the framework of the internal shock model. The impact in the neutrino flux calculation of the lack of knowledge on the majority of source redshifts and on other intrinsic parameters of the emission mechanism (e.g. minimum variability timescale, bulk Lorentz factor of the source ejecta) has been quantified. The minimum variability timescale is found to be the parameter which mostly affects the GRB-neutrino flux uncertainty. For the selected sources, ANTARES data have been analysed, maximising the discovery probability of the stacking sample through an extended maximum-likelihood strategy. Since no neutrino event passed the quality cuts set by the optimisation procedure, 90% confidence level upper limits (with their uncertainty) on the total expected diffuse neutrino flux have been derived, according to the model. The GRB contribution to the observed diffuse astrophysical neutrino flux around 100 TeV is constrained to be less than 10%.
Source:	arXiv, 2008.02127
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